I just recently reinstalled my operating system. I dont know if any of this makes sense, but none of the software on my computer cant connect to the internet.  when i install a new program, it cant automatically connnect to the internet.  download managers cant connect, programs cant connect, program registrations cant connect.  i tried disabling my firewall and that didnt work.  my internet connection is working great (i can view web pages and stuffi can, download from webpages). my itunes cant connect to the internet (itunes store, internet radio). i dont know wat to do....how do i fix that?